Hi all, I have a question about bit manipulation. What I have is an input that reads '11010000' say. What I need to do is convert it to '00001101' say. One route seems to be to RRNCF four times. Would this do the job and not affect any other registers? Is there a better way to bit mask to create the desired result? TIA, & Happy New Year to all on the list:-)) -- Philip Martin email philip@philmart.demon.co.uk Royal Quays, North Shields.